Tomoe and Miyako come to Sumika's house for a study session, although they are really thinking up plans for their girl's club. Sumika has trouble juggling both them and her in-house maid who embarrasses her. The next day they decide to take their 'studying' over to Ushio's house, where Sumika notices she and Ushio both have the same photo of each other taken on the first day of school displayed in their rooms. Preparations for dinner soon turns into a battle between Sumika and Miyako, which ends with explosive results. After another failed attempt at working together to cook, Ushio's brother, Norio, arrives with some takoyaki and are later joined by their friend Kiyori Torioi. After leaving, Tomoe and Miyako thank Sumika for helping them get friends. When Sumika gets home, she prints out a photo of the five of them together.

Sumika ends up working with Azusa to finish her doujin for the yuri convention, hoping to finish in time to join Ushio and the others on their trip to the beach. However, unbeknownst to her, their trip is cut short due to Tomoe wrecking their rented car. As they approach the end of a seemingly endless amount of photocopying, Azusa notices a spelling error. Sumika can't stand leaving it there, so she makes further copies, having to visit several stores to get a working copier. However, when she finally gets back, she trips up and spreads all the copies everywhere, causing Azusa's mother to slip and spill drinks all over them. Noticing how distraught Azusa becomes as a result, Sumika decides to forgo joining the gang and helps her salvage the remaining copies for the convention. To Sumika's surprise, Ushio shows up at the convention to see her and buy a copy of their doujin.

Sumika goes with her family on a trip to visit graves and an obon festival, promising to call Ushio when she gets there. However, the house they were meant to stay at got damaged in a fire, so they are relocated to a temple on a mountain which, much to Sumika's chagrin, is out of her cell phone's range, meaning she can't contact Ushio. The next day, Sumika is put in charge of looking after some children. Whilst visiting the river, one of the children, Teru, falls off a tree into the river, and Sumika goes to save him, getting her cell phone wet in the process. Meanwhile, Ushio gets concerned that she hasn't heard from Sumika, wondering if she got caught up in an accident or something. Teru apologises to Sumika for causing her trouble and gets grounded. When Sumika's phone starts working again and Ushio calls it, Teru rushes it over to Sumika who is attending a festival and the two finally get to talk to each other.